Re: frosty cryostat

Andi,
So, you have a 2800N, too! We've noticed that any cryostat will frost up in
a humid climate. Ideally, if you have the space, you need a dehumidifier in
the room. Leica suggested that if you are in a sunny room, to pull the
shades. I live in swampy Iowa where the summer humidity is "good for the
corn". We are in a sunny room, and pull the shades and crank on the air
conditioner. We also defrost the unit once a week. One of my techs does
Mohs' on a Tissue-Tek II all day, and she will turn on the defrost cycle
during the noon break to clean out some of the frost. I have not had to be
that drastic with the Frigocut, but give the defrost cycle a try. Then
adjust the cycle for another run as usual during the night.
Bec the Tec
>From: Valleygal@aol.com
>To: histonet@pathology.swmed.edu
>Subject: frosty cryostat
>Date: Sat, 01 Jul 2000 12:50:40 -0400 (EDT)
>
>Fellow Histonetters,
>This question is directed mostly to those techs who live in humid areas and
>do lots of frozens in old labs which are not "climate controlled".
>Usually Tucson has a very dry climate but during the summer monsoons it
>gets
>a little swampy. We are in the monsoon season now and the rain is great for
>most things but not for my cryostat.
>My cryostat, a Leica 2800N, has been frosting up something awful because it
>is so humid in our room. I put a tray of drierite in the chamber and it
>turned pink almost immediately. Of course it doesn't help to be cutting
>sections and having the window open for long stretches of time. Does
>anybody
>have any tips on preventing the frost build up in a normally frost free
>cryostat?
>Thanks!
>Andi Grantham
>University of Arizona
>
>**********************************************************************
> =^..^=
>
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